RM3660EC _59 Vehicle Exterior _080784 LIGHTING (EXT) _0600055 LIGHTING SYSTEM(for NR Series Engine) J

LIGHTING (EXT)  LIGHTING SYSTEM(for NR Series Engine)  Daytime Running Light Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the daytime running lights.

WIRING DIAGRAM

for TFTM Made


E419014E17
4.396,1.438 4.854,1.635 0.458,0.198 10 false DRL 0.24,0.552 1.792,0.802 1.552,0.25 10 false from Battery 1.667,0.719 2.125,0.917 0.458,0.198 10 false DRL 1.656,3.469 2.115,3.667 0.458,0.198 10 false E 1.656,1.708 2.115,1.906 0.458,0.198 10 false E 2.917,3.458 3.073,3.656 0.156,0.198 10 false B 2.906,1.698 3.063,1.896 0.156,0.198 10 false B 3.729,1.688 4.042,1.885 0.313,0.198 10 false 4A 3.729,0.583 4.042,0.781 0.313,0.198 10 false 4B 3.771,0.917 3.927,1.115 0.156,0.198 10 false 7 3.74,1.479 4.052,1.677 0.313,0.198 10 false 28 5.958,0.469 6.271,0.667 0.313,0.198 10 false 25 6.219,0.469 6.833,0.667 0.615,0.198 10 false DRL 4.052,2.177 5.667,2.927 1.615,0.75 10 false Driver Side Junction Block Assembly 5.406,2.823 5.719,3.021 0.313,0.198 10 false MB 5.427,3 7.083,3.719 1.656,0.719 10 false Main Body ECU (Multiplex Network Body ECU) 1.615,2.25 2.594,2.448 0.979,0.198 10 false A23 1.615,2.427 3.604,2.625 1.99,0.198 10 false Headlight Assembly LH 1.927,4.802 3.281,5.063 1.354,0.26 10 false A73 3.083,1.604 3.542,1.802 0.458,0.198 10 false 3 1.5,1.604 1.958,1.802 0.458,0.198 10 false 1 3.083,3.354 3.542,3.552 0.458,0.198 10 false 3 3.729,1.135 4.042,1.333 0.313,0.198 10 false 4B 3.729,0.375 4.042,0.573 0.313,0.198 10 false 30 1.604,4.167 3.594,4.365 1.99,0.198 10 false Headlight Assembly RH 5.115,0.583 5.427,0.781 0.313,0.198 10 false 4B 5.615,0.583 5.927,0.781 0.313,0.198 10 false 4B 5.625,0.375 5.938,0.573 0.313,0.198 10 false 28 5.125,0.375 5.438,0.573 0.313,0.198 10 false 20 1.5,3.365 1.958,3.563 0.458,0.198 10 false 1 1.604,4 2.583,4.198 0.979,0.198 10 false A22


for GTMC Made


E419014E18
4.396,1.469 4.854,1.667 0.458,0.198 10 false DRL 0.229,0.563 1.781,0.813 1.552,0.25 10 false from Battery 1.656,0.74 2.115,0.938 0.458,0.198 10 false DRL 1.656,3.458 2.115,3.656 0.458,0.198 10 false E 1.656,1.688 2.115,1.885 0.458,0.198 10 false E 2.885,3.448 3.042,3.646 0.156,0.198 10 false B 2.875,1.688 3.031,1.885 0.156,0.198 10 false B 3.74,1.688 4.052,1.885 0.313,0.198 10 false 4A 3.729,0.583 4.042,0.781 0.313,0.198 10 false 4B 3.771,0.938 3.927,1.135 0.156,0.198 10 false 7 3.75,1.49 4.063,1.688 0.313,0.198 10 false 28 5.969,0.479 6.281,0.677 0.313,0.198 10 false 25 6.219,0.469 6.833,0.667 0.615,0.198 10 false DRL 4.156,2.208 5.771,2.948 1.615,0.74 10 false Driver Side Junction Block Assembly 5.417,2.823 5.729,3.021 0.313,0.198 10 false MB 5.427,3 7.083,3.719 1.656,0.719 10 false Main Body ECU (Multiplex Network Body ECU) 1.594,2.26 2.573,2.458 0.979,0.198 10 false A168 1.594,2.427 3.583,2.625 1.99,0.198 10 false Headlight Assembly LH 1.927,4.802 3.281,5.063 1.354,0.26 10 false A73 1.49,1.583 1.948,1.781 0.458,0.198 10 false 5 3.073,1.583 3.531,1.781 0.458,0.198 10 false 8 3.083,3.344 3.542,3.542 0.458,0.198 10 false 8 1.49,3.333 1.948,3.531 0.458,0.198 10 false 5 3.729,1.135 4.042,1.333 0.313,0.198 10 false 4B 3.729,0.396 4.042,0.594 0.313,0.198 10 false 30 1.594,4.021 2.573,4.219 0.979,0.198 10 false A167 1.604,4.188 3.594,4.385 1.99,0.198 10 false Headlight Assembly RH 5.104,0.594 5.417,0.792 0.313,0.198 10 false 4B 5.604,0.594 5.917,0.792 0.313,0.198 10 false 4B 5.115,0.396 5.427,0.594 0.313,0.198 10 false 20 5.615,0.385 5.927,0.583 0.313,0.198 10 false 28


CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.



PROCEDURE

1.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for TFTM Made A
for GTMC Made B



A

2.CHECK OPERATION (CLEARANCE LIGHTS)

B

8.CHECK OPERATION (CLEARANCE LIGHTS)
2.CHECK OPERATION (CLEARANCE LIGHTS)
a.

Check the operation of the clearance lights.

OK:

The clearance lights operate normally.



Result:
Proceed to
OK
NG



OK

3.PERFORM ACTIVE TEST USING GTS

NG

GO TO PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


3.PERFORM ACTIVE TEST USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Daytime Running Light Daytime running lights OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Daytime Running Light
50004 123 29
OK:

Daytime running lights illuminate.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


NG

4.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
4.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4B driver side junction block assembly connector.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
4B-7 - Body ground Always 11 to 14 V
4B-30 - Body ground Always 11 to 14 V



Result:
Result Proceed to
OK A
NG B



A

5.CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

B

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4A driver side junction block assembly connector.


b.

Disconnect the A22 headlight assembly RH connector.


c.

Disconnect the A23 headlight assembly LH connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A23-3 (B) - 4A-28 Always Below 1 Ω
A22-3 (B) - 4A-28 Always Below 1 Ω
A23-3 (B) or 4A-28 - Body ground Always 10 kΩ or higher
A22-3 (B) or 4A-28 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
4B-20 - 4B-28 Always Below 1 Ω
4B-20 or 4B-28 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E410246C01
1.635,0.344 2.042,0.615 0.406,0.271 4.948,0.344 5.354,0.615 0.406,0.271 3.365,2.198 3.771,2.469 0.406,0.271 4.813,3.302 4.563,2.865 false 0.26,0.188 0.573,0.385 0.313,0.198 10 false *a 1.74,0.406 2.052,0.604 0.313,0.198 10 false 4B 5.052,0.396 5.365,0.594 0.313,0.198 10 false 4A 3.458,2.25 3.771,2.448 0.313,0.198 10 false MB 4.76,3.333 5.219,3.531 0.458,0.198 10 false DRL
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
4B-28 - MB-25 (DRL) Always Below 1 Ω
4B-7 - 4A-28 Battery not connected to 4B-30 and 4B-20 10 kΩ or higher
4B-7 - 4A-28 Battery positive (+) → 4B-30
Battery negative (-) → 4B-20 		Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


8.CHECK OPERATION (CLEARANCE LIGHTS)
a.

Check the operation of the clearance lights.

OK:

The clearance lights operate normally.



Result:
Proceed to
OK
NG



OK

9.PERFORM ACTIVE TEST USING GTS

NG

GO TO PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


9.PERFORM ACTIVE TEST USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Daytime Running Light Daytime running lights OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
Daytime Running Light
50004 123 29
OK:

Daytime running lights illuminate.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


NG

10.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
10.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4B driver side junction block assembly connector.


b.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
4B-7 - Body ground Always 11 to 14 V
4B-30 - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4A driver side junction block assembly connector.


b.

Disconnect the A168 headlight assembly LH connector.


c.

Disconnect the A167 headlight assembly RH connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A168-8 (B) - 4A-28 Always Below 1 Ω
A167-8 (B) - 4A-28 Always Below 1 Ω
A168-8 (B) or 4A-28 - Body ground Always 10 kΩ or higher
A167-8 (B) or 4A-28 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
4B-20 - 4B-28 Always Below 1 Ω
4B-20 or 4B-28 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

13.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E410246C01
1.635,0.344 2.042,0.615 0.406,0.271 4.948,0.344 5.354,0.615 0.406,0.271 3.365,2.198 3.771,2.469 0.406,0.271 4.813,3.302 4.563,2.865 false 0.26,0.188 0.573,0.385 0.313,0.198 10 false *a 1.74,0.406 2.052,0.604 0.313,0.198 10 false 4B 5.052,0.396 5.365,0.594 0.313,0.198 10 false 4A 3.458,2.25 3.771,2.448 0.313,0.198 10 false MB 4.76,3.333 5.219,3.531 0.458,0.198 10 false DRL
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
4B-28 - MB-25 (DRL) Always Below 1 Ω
4B-7 - 4A-28 Battery not connected to 4B-30 and 4B-20 10 kΩ or higher
4B-7 - 4A-28 Battery positive (+) → 4B-30
Battery negative (-) → 4B-20 		Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL